HYTOS

        # third strp : body connected run sort, not split

        remain_count_past = len(waiting_run_infos)

        while True:

            remain_count = 0

            for run_index in reversed(range(len(waiting_run_infos))):

                waiting_run_info = waiting_run_infos[run_index]

                waiting_run = waiting_run_info.run

                find = False

                for fixed_run_info in fixed_run_infos:

                    fixed_run = fixed_run_info.run

                    if len(waiting_run.items) > 1 and len(fixed_run.items) > 1 and type(waiting_run.items[0]) is QEngineeringLineItem and type(waiting_run.items[-1]) is QEngineeringLineItem:

                        if waiting_run.items[0].connectors[0].connectedItem in fixed_run.items and waiting_run.items[-1].connectors[1].connectedItem in fixed_run.items:

                            if fixed_run.items.index(waiting_run.items[0].connectors[0].connectedItem) > fixed_run.items.index(waiting_run.items[-1].connectors[1].connectedItem):

                                waiting_run.reverse()

                                fixed_run_infos.append(waiting_run_info)

                                waiting_run_infos.pop(run_index)

                                find = True

                                break

                            else:

                                fixed_run_infos.append(waiting_run_info)

                                waiting_run_infos.pop(run_index)

                                find = True

                                break                        

                if not find:

                    remain_count += 1

            if remain_count_past == remain_count:

                break

            else:

                remain_count_past = remain_count

        # fourth step : body connected split run or split owner run sort